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linux/drivers/cpufreq
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Yinghai Lu 4dea5806d3 cpufreq: return EEXIST instead of EBUSY for second registering 
On systems that support intel_pstate, acpi_cpufreq fails to load, and
udev keeps trying until trace gets filled up and kernel crashes.

The root cause is driver return ret from cpufreq_register_driver(),
because when some other driver takes over before, it will return
EBUSY and then udev will keep trying ...

cpufreq_register_driver() should return EEXIST instead so that the
system can boot without appending intel_pstate=disable and still use
intel_pstate.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-09-20 00:37:10 +02:00
..
acpi-cpufreq.c
acpi-cpufreq: Use cpufreq_freq_attr_rw to define the cpb attribute
2013-08-14 22:24:22 +02:00
amd_freq_sensitivity.c
cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor
2013-04-10 13:19:26 +02:00
arm_big_little_dt.c
cpufreq: arm_big_little: remove device tree parsing for cpu nodes
2013-08-21 10:29:55 +01:00
arm_big_little.c
cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases
2013-06-24 18:18:58 +05:30
arm_big_little.h
cpufreq: ARM big LITTLE: Move cpu_to_cluster() to arm_big_little.h
2013-05-12 14:04:15 +02:00
at32ap-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
blackfin-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
cpufreq_conservative.c
cpufreq: governors: Remove duplicate check of target freq in supported range
2013-08-28 22:03:02 +02:00
cpufreq_governor.c
cpufreq: Don't use smp_processor_id() in preemptible context
2013-08-29 22:19:23 +02:00
cpufreq_governor.h
cpufreq: governor: Fix typos in comments
2013-08-28 22:04:54 +02:00
cpufreq_ondemand.c
cpufreq: governors: Remove duplicate check of target freq in supported range
2013-08-28 22:03:02 +02:00
cpufreq_performance.c
cpufreq: Clean up header files included in the core
2013-08-07 23:34:09 +02:00
cpufreq_powersave.c
cpufreq: Clean up header files included in the core
2013-08-07 23:34:09 +02:00
cpufreq_stats.c
cpufreq: Fix wrong time unit conversion
2013-09-10 02:49:46 +02:00
cpufreq_userspace.c
cpufreq: Fix minor formatting issues
2013-06-21 01:06:34 +02:00
cpufreq-cpu0.c
cpufreq: cpufreq-cpu0: assign cpu_dev correctly to cpu0 device
2013-09-19 03:53:43 +02:00
cpufreq-nforce2.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
cpufreq.c
cpufreq: return EEXIST instead of EBUSY for second registering
2013-09-20 00:37:10 +02:00
cris-artpec3-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
cris-etraxfs-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
davinci-cpufreq.c
cpufreq: davinci: call CPUFREQ_POSTCHANGE notfier in error cases
2013-06-24 18:18:58 +05:30
dbx500-cpufreq.c
cpufreq: delete __cpuinit usage from all cpufreq files
2013-07-14 19:36:57 -04:00
e_powersaver.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
elanfreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
exynos4x12-cpufreq.c
arm-soc: cleanups
2013-02-21 14:58:40 -08:00
exynos4210-cpufreq.c
arm-soc: cleanups
2013-02-21 14:58:40 -08:00
exynos5250-cpufreq.c
arm-soc: cleanups
2013-02-21 14:58:40 -08:00
exynos5440-cpufreq.c
cpufreq: exynos5440: Fix to skip when new frequency same as current
2013-08-12 12:00:18 +05:30
exynos-cpufreq.c
Merge branch 'cpufreq-fixes' of git://git.linaro.org/people/vireshk/linux into pm-cpufreq
2013-08-14 22:22:57 +02:00
exynos-cpufreq.h
cpufreq: fix EXYNOS drivers selection
2013-08-12 12:00:21 +05:30
freq_table.c
cpufreq: Clean up header files included in the core
2013-08-07 23:34:09 +02:00
gx-suspmod.c
cpufreq / gx: Fix gx_detect_chipset() __init attribute location
2013-08-14 22:24:23 +02:00
highbank-cpufreq.c
cpufreq: highbank-cpufreq: remove device tree parsing for cpu nodes
2013-08-21 10:29:54 +01:00
ia64-acpi-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
imx6q-cpufreq.c
cpufreq: imx6q-cpufreq: assign cpu_dev correctly to cpu0 device
2013-09-19 03:53:43 +02:00
integrator-cpufreq.c
cpufreq: integrator: move cpufreq driver to drivers/cpufreq
2013-04-08 13:02:31 +02:00
intel_pstate.c
intel_pstate: Add Haswell CPU models
2013-09-10 23:10:39 +02:00
Kconfig
cpufreq: Fix incorrect dependecies for ARM SA11xx drivers
2013-05-12 14:04:16 +02:00
Kconfig.arm
cpufreq: fix EXYNOS drivers selection
2013-08-12 12:00:21 +05:30
Kconfig.powerpc
Merge branch 'pm-cpufreq-assorted' into pm-cpufreq
2013-06-27 21:46:45 +02:00
Kconfig.x86
cpufreq: X86_AMD_FREQ_SENSITIVITY: select CPU_FREQ_TABLE
2013-06-18 13:53:11 +05:30
kirkwood-cpufreq.c
Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next
2013-08-23 00:57:19 +02:00
longhaul.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
longhaul.h
cpufreq: delete __cpuinit usage from all cpufreq files
2013-07-14 19:36:57 -04:00
longrun.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
loongson2_cpufreq.c
Merge back earlier 'pm-cpufreq' material
2013-08-14 22:21:16 +02:00
Makefile
cpufreq: Remove unused APERF/MPERF support
2013-07-26 01:06:43 +02:00
maple-cpufreq.c
Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next
2013-08-23 00:57:19 +02:00
omap-cpufreq.c
cpufreq: delete __cpuinit usage from all cpufreq files
2013-07-14 19:36:57 -04:00
p4-clockmod.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
pasemi-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
pcc-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
pmac32-cpufreq.c
Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next
2013-08-23 00:57:19 +02:00
pmac64-cpufreq.c
Merge branch 'cpu_of_node' of git://linux-arm.org/linux-skn into pm-cpufreq-next
2013-08-23 00:57:19 +02:00
powernow-k6.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
powernow-k7.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
powernow-k7.h
[CPUFREQ] Move x86 drivers to drivers/cpufreq/
2011-05-19 18:51:07 -04:00
powernow-k8.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
powernow-k8.h
cpufreq: Remove support for hardware P-state chips from powernow-k8
2012-09-09 22:05:30 +02:00
ppc_cbe_cpufreq_pervasive.c
cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq
2013-04-10 13:19:26 +02:00
ppc_cbe_cpufreq_pmi.c
cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq
2013-04-10 13:19:26 +02:00
ppc_cbe_cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
ppc_cbe_cpufreq.h
cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq
2013-04-10 13:19:26 +02:00
ppc-corenet-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
pxa2xx-cpufreq.c
cpufreq / pxa2xx: Fix pxa_cpufreq_init_voltages() __init attribute location
2013-08-14 22:24:23 +02:00
pxa3xx-cpufreq.c
pxa3xx-cpufreq.c: Avoid using ARRAY_AND_SIZE(e) as a function argument
2013-08-14 22:24:23 +02:00
s3c24xx-cpufreq-debugfs.c
cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq
2013-05-20 23:04:28 +09:00
s3c24xx-cpufreq.c
cpufreq / s3c24xx: Fix s3c_cpufreq_initclks() __init attribute location
2013-08-14 22:24:24 +02:00
s3c64xx-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
s3c2410-cpufreq.c
cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq
2013-05-20 23:04:28 +09:00
s3c2412-cpufreq.c
cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq
2013-05-20 23:04:28 +09:00
s3c2416-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
s3c2440-cpufreq.c
cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq
2013-05-20 23:04:28 +09:00
s5pv210-cpufreq.c
cpufreq: Notify all policy->cpus in cpufreq_notify_transition()
2013-04-02 15:24:00 +02:00
sa1100-cpufreq.c
cpufreq: sa11x0: move cpufreq driver to drivers/cpufreq
2013-04-10 13:19:24 +02:00
sa1110-cpufreq.c
cpufreq: sa11x0: move cpufreq driver to drivers/cpufreq
2013-04-10 13:19:24 +02:00
sc520_freq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
sh-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
sparc-us2e-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
sparc-us3-cpufreq.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
spear-cpufreq.c
cpufreq: spear-cpufreq: remove device tree parsing for cpu nodes
2013-08-21 10:29:54 +01:00
speedstep-centrino.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
speedstep-ich.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
speedstep-lib.c
cpufreq: Add support for x86 cpuinfo auto loading v4
2012-01-26 16:49:06 -08:00
speedstep-lib.h
[CPUFREQ] Move x86 drivers to drivers/cpufreq/
2011-05-19 18:51:07 -04:00
speedstep-smi.c
cpufreq: Drop the owner field from struct cpufreq_driver
2013-08-10 03:24:47 +02:00
tegra-cpufreq.c
cpufreq: tegra: fix the wrong clock name
2013-08-23 21:58:28 +05:30
unicore2-cpufreq.c
cpufreq: unicore2: Staticize local symbol
2013-08-14 22:24:24 +02:00